youngsj231
youngsj231
26-06-2018
Mathematics
contestada
if sin x = 0.3 , what is the value of cos x
Respuesta :
cynthiatershner
cynthiatershner
26-06-2018
sin²(x)+cos²(x) =1
(0.3)²+cos²(x) =1
cos²(x) =1- (0.3)²
cos²(x) =1- 9/100
cos²(x) = 91/100
cos(x) = ± (91/100)
cos(x) = ± 0.91
Answer Link
Confused10000
Confused10000
21-03-2019
Answer: 0.95
Step-by-step explanation:
Answer Link
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